There is many valid ways to make a signal chain.
What you propose will record the signal without the compressor effect since you go from the preamp to the audio interface.
But some will want to record after the compressor (if it sounds any good)
I'd like to know the make and models, preamps, compressor, mixer and audio interface.

The model of mixer is eurorack mx 1604a
Compressor is autocom pro
Preamp is ISK 2000
Interface scarlet solo
What you propose me to connect all this for nice vocal

Thanks for the details.
I'm seriously wondering if the ISK is better than the Scarlett onboard preamp.
The scarlett doesn't have a strait to converter line in. So you are pluging a preamp in another preamp (at least a part of the circuit that is), which isn't ideal.
If I were you, I'd go by ears.
Try these and choose what sounds best :
Mic scarlett
Mic ISK Scarlet

You can find cleaner compresor ITB (in your DAW) so I wouldn't put it in the recorded signal chain.
Thing is, you could have spared yourself from having the mixer if you bought an interface with more than 2 outputs (to make a aux send to the compressor and back to the interface)

Can you tell me for another way to connect compressor to mix and signal of compressor send from mixer to sound card, how can i do that?

Just because you have that mixer, preamp and compressor doesn't mean using them is beneficial. The interface has a preamp and compression can be done better in software. Can you explain why you need all that extra hardware?

Fidan Sylejmani, post: 450525, member: 50602 wrote: Can you tell me for another way to connect compressor to mix and signal of compressor send from mixer to sound card, how can i do that?

I'm not sure what you mean by ''Compressor to mix'' Do you want to do the mixing of the recorded tracks with the use of the compressor or is it compressor to mixer ?

There is many ways to plug your gear together.
What I'm always trying to do is to capture the best sound first.
Then I'll arange for hearing everything well to help the performance.

So You need to determin which of your preamps sounds the best ;

• Those of the mixer
• The Preamp ISK 2000
• Or the preamp of the scarlett

Once you know, the signal of the chosen one should go to the interface (with the shortest route)

If you choose the ISK, I see that there is a balance output but a line out as well.
If both are active all the time, you could use the XLR to send the signal to the Scarlett and use the line out to send the signal to your mixer or the compressor (if you need it for monitoring purpose)
Honestly, we are talking low end equipment here, I would personnaly avoid to use the compressor and the mixer. You should be able to do nice recordings with the Scarlett alone.
But you never said what you do. I can understand that you want to use other Tools if you do live streaming.
But to record voice over or singing, the Scarlett is all good (not highend, but very fonctionnal)

First im sorry for my bed English
Everything i want to know is how to connect compressor to interface. But my interface have a one line output and line input or instrument on channel 2 that's mean can't connect compressor to interface directly ( line in/out)
So i want to connecting compressor to mixer and effect of compressor send to interface from mixer...
I hope to understand me

The why is often more important than how, but have it your way !

First possible setup (without mixer):
Mic xlr to preamp xlr input
Preamp Xlr balance output to XLR compressor input
Compressor 1/4inch stereo (TRS) cable Output to input 2 of the Scarlett (Switch at line)
(Note ; your monitors can be plugged to the Scarlett outputs and make use of the internal realtime mixer OR you could send the outputs of the Scarlett to the mixer and plug your monitors to the mixer's output BUT, your should know that the mixer will change the sound and therefor you won't hear the clean sound out of the Scarlett...)

Second possible setup (worst setup possible) :
Mic xlr to preamp xlr input
Preamp Xlr balance output to XLR compressor input
Compressor XLR Output to XLR input of the mixer (keep gain down)
Mixer Aux send 1 1/4inch stereo (TRS) cable Output to input 2 of the Scarlett (Switch at line) (need to put aux level up on the mixer channel and Aux 1 master)

Again neither solution would be my choice because the mixer and the compressor will degrade the sound due to their poor quality. Using the Scarlett alone is a better option...

pcrecord, post: 450534, member: 46460 wrote: Again neither solution would be my choice because the mixer and the compressor will degrade the sound due to their poor quality. Using the Scarlett alone is a better option...

I agree 100%.